ProjectReconstructing the emergence of the Milky Way’s stellar population with Gaia, SDSS-V and JWST

Researcher (PI)Dan Maoz

Host Institution (HI)TEL AVIV UNIVERSITY

Call DetailsAdvanced Grant (AdG), PE9, ERC-2018-ADG

SummaryUnderstanding how the Milky Way arrived at its present state requires a large volume of precision measurements of our Galaxy’s current makeup, as well as an empirically based understanding of the main processes involved in the Galaxy’s evolution. Such data are now about to arrive in the flood of quality information from Gaia and SDSS-V. The demography of the stars and of the compact stellar remnants in our Galaxy, in terms of phase-space location, mass, age, metallicity, and multiplicity are data products that will come directly from these surveys. I propose to integrate this information into a comprehensive picture of the Milky Way’s present state. In parallel, I will build a Galactic chemical evolution model, with input parameters that are as empirically based as possible, that will reproduce and explain the observations. To get those input parameters, I will measure the rates of supernovae (SNe) in nearby galaxies (using data from past and ongoing surveys) and in high-redshift proto-clusters (by conducting a SN search with JWST), to bring into sharp focus the element yields of SNe and the distribution of delay times (the DTD) between star formation and SN explosion. These empirically determined SN metal-production parameters will be used to find the observationally based reconstruction of the Galaxy’s stellar formation history and chemical evolution that reproduces the observed present-day Milky Way stellar population. The population census of stellar multiplicity with Gaia+SDSS-V, and particularly of short-orbit compact-object binaries, will hark back to the rates and the element yields of the various types of SNe, revealing the connections between various progenitor systems, their explosions, and their rates. The plan, while ambitious, is feasible, thanks to the data from these truly game-changing observational projects. My team will perform all steps of the analysis and will combine the results to obtain the clearest picture of how our Galaxy came to be.

Understanding how the Milky Way arrived at its present state requires a large volume of precision measurements of our Galaxy’s current makeup, as well as an empirically based understanding of the main processes involved in the Galaxy’s evolution. Such data are now about to arrive in the flood of quality information from Gaia and SDSS-V. The demography of the stars and of the compact stellar remnants in our Galaxy, in terms of phase-space location, mass, age, metallicity, and multiplicity are data products that will come directly from these surveys. I propose to integrate this information into a comprehensive picture of the Milky Way’s present state. In parallel, I will build a Galactic chemical evolution model, with input parameters that are as empirically based as possible, that will reproduce and explain the observations. To get those input parameters, I will measure the rates of supernovae (SNe) in nearby galaxies (using data from past and ongoing surveys) and in high-redshift proto-clusters (by conducting a SN search with JWST), to bring into sharp focus the element yields of SNe and the distribution of delay times (the DTD) between star formation and SN explosion. These empirically determined SN metal-production parameters will be used to find the observationally based reconstruction of the Galaxy’s stellar formation history and chemical evolution that reproduces the observed present-day Milky Way stellar population. The population census of stellar multiplicity with Gaia+SDSS-V, and particularly of short-orbit compact-object binaries, will hark back to the rates and the element yields of the various types of SNe, revealing the connections between various progenitor systems, their explosions, and their rates. The plan, while ambitious, is feasible, thanks to the data from these truly game-changing observational projects. My team will perform all steps of the analysis and will combine the results to obtain the clearest picture of how our Galaxy came to be.

Max ERC Funding

1 859 375 €

Duration

Start date: 2019-10-01, End date: 2024-09-30

Project acronymMIX2FIX

ProjectHybrid, organic-inorganic chalcogenide optoelectronics

Researcher (PI)Thomas STERGIOPOULOS

Host Institution (HI)ARISTOTELIO PANEPISTIMIO THESSALONIKIS

Call DetailsConsolidator Grant (CoG), PE8, ERC-2018-COG

SummaryThe new generation of optoelectronics seeks for emerging semiconductors which combine high performance with low cost. Lead halide organic-inorganic perovskites manifest as excellent optoelectronic materials for this purpose, but at the expense of robustness and environmental compatibility. This presents a major challenge which this research addresses directly. Viable alternatives have to be identified. To tackle this challenge, MIX2FIX proposes to develop a new class of solution-processable optoelectronic devices based on air-stable, non-toxic metal chalcogenides endowed with an organic part, which will facilitate solution-processing and potentially enrich the compounds with the spectacular properties of halide perovskites. To achieve this, the CoG project has set the following objectives: (i) designing and developing optoelectronically-active, organic-inorganic chalcogenide thin films that have never been explored before, by mimicking strategies from established perovskite technology, (ii) devising means to improve their optoelectronic quality so as to be comparable with the best single-crystal semiconductors and (iii) implementing optimized materials into boundary-pushing PV and LED devices. Addressing these objectives will enable the development of novel functional hybrids at the boundaries of perovskite and chalcogenide thin films. With this, optoelectronics with efficiency and stability, comparable or higher than those of lead halide perovskite or chalcopyrite devices, will be demonstrated. This project will therefore permit the transition for emerging optoelectronic materials from toxic lead halide perovskites to green hybrid chalcogenides. Consolidating this unproven but disruptive technology will secure sustainable future for other areas of interest beyond photovoltaics, displays and lighting such as in X-Rays detectors and phototransistors or even beyond optoelectronics, in systems such as batteries and supercapacitors.

The new generation of optoelectronics seeks for emerging semiconductors which combine high performance with low cost. Lead halide organic-inorganic perovskites manifest as excellent optoelectronic materials for this purpose, but at the expense of robustness and environmental compatibility. This presents a major challenge which this research addresses directly. Viable alternatives have to be identified. To tackle this challenge, MIX2FIX proposes to develop a new class of solution-processable optoelectronic devices based on air-stable, non-toxic metal chalcogenides endowed with an organic part, which will facilitate solution-processing and potentially enrich the compounds with the spectacular properties of halide perovskites. To achieve this, the CoG project has set the following objectives: (i) designing and developing optoelectronically-active, organic-inorganic chalcogenide thin films that have never been explored before, by mimicking strategies from established perovskite technology, (ii) devising means to improve their optoelectronic quality so as to be comparable with the best single-crystal semiconductors and (iii) implementing optimized materials into boundary-pushing PV and LED devices. Addressing these objectives will enable the development of novel functional hybrids at the boundaries of perovskite and chalcogenide thin films. With this, optoelectronics with efficiency and stability, comparable or higher than those of lead halide perovskite or chalcopyrite devices, will be demonstrated. This project will therefore permit the transition for emerging optoelectronic materials from toxic lead halide perovskites to green hybrid chalcogenides. Consolidating this unproven but disruptive technology will secure sustainable future for other areas of interest beyond photovoltaics, displays and lighting such as in X-Rays detectors and phototransistors or even beyond optoelectronics, in systems such as batteries and supercapacitors.

Max ERC Funding

2 731 250 €

Duration

Start date: 2019-09-01, End date: 2024-08-31

Project acronymRICONTRANS

ProjectVisual Culture, Piety and Propaganda: Transfer and Reception of Russian Religious Art in the Balkans and the Eastern Mediterranean (16th to early 20th Century)

Researcher (PI)Yuliana BOYCHEVA

Host Institution (HI)IDRYMA TECHNOLOGIAS KAI EREVNAS

Call DetailsConsolidator Grant (CoG), SH6, ERC-2018-COG

SummaryThe Russian religious artefacts (icons and ecclesiastical furnishings) held in museums, church or monastery collections in the Balkans and Eastern Mediterranean constitute a body of valuable monuments hitherto largely neglected by historians and historians of art. These objects acquire various interrelated religious/ideological, political and aesthetic meanings, value and uses. Their transfer and reception is a significant component of the larger process of transformation of the artistic language and visual culture in the region and its transition from medieval to modern idioms. It is at the same time a process reflecting the changing cultural and political relations between Russia and the Orthodox communities in the Ottoman Empire and its successor states in the Balkans over a long period of time (16th-20th century). In this dynamic transfer, piety, propaganda and visual culture appear intertwined in historically unexplored and theoretically provoking ways.
The aim of RICONTRANS is to investigate, for the first time in a systematic and interdisciplinary way, this transnational phenomenon of artefact transfer and reception. Applying the cultural transfer approach in combination with the recent challenging openings of art history to visual studies, this project aims to: map the phenomenon in its long history by identifying preserved objects in the region; follow the paths and identify the mediums of this transfer; analyse the dynamics and the moving factors (religious, political, ideological) of this process during its various historical phases; study and classify these objects according to their iconographic and artistic particularities; inquire into the aesthetic, ideological, political, and social factors which shaped the context of the reception of Russian religious art objects in various social, cultural and religious environments; investigate the influence of these transferred artefacts on the visual culture of the host societies.

The Russian religious artefacts (icons and ecclesiastical furnishings) held in museums, church or monastery collections in the Balkans and Eastern Mediterranean constitute a body of valuable monuments hitherto largely neglected by historians and historians of art. These objects acquire various interrelated religious/ideological, political and aesthetic meanings, value and uses. Their transfer and reception is a significant component of the larger process of transformation of the artistic language and visual culture in the region and its transition from medieval to modern idioms. It is at the same time a process reflecting the changing cultural and political relations between Russia and the Orthodox communities in the Ottoman Empire and its successor states in the Balkans over a long period of time (16th-20th century). In this dynamic transfer, piety, propaganda and visual culture appear intertwined in historically unexplored and theoretically provoking ways.
The aim of RICONTRANS is to investigate, for the first time in a systematic and interdisciplinary way, this transnational phenomenon of artefact transfer and reception. Applying the cultural transfer approach in combination with the recent challenging openings of art history to visual studies, this project aims to: map the phenomenon in its long history by identifying preserved objects in the region; follow the paths and identify the mediums of this transfer; analyse the dynamics and the moving factors (religious, political, ideological) of this process during its various historical phases; study and classify these objects according to their iconographic and artistic particularities; inquire into the aesthetic, ideological, political, and social factors which shaped the context of the reception of Russian religious art objects in various social, cultural and religious environments; investigate the influence of these transferred artefacts on the visual culture of the host societies.